I have the X-E1 from the beginning, focus is greatly improved with the firmware updates. For fast moving objects it does not track like the X-T1. It amazes me when so many people say you can not use it for sports or action photos. What about all those years without auto focus and all those action photos taken. Yes it is much easier now and I wish the X-E1 had focus tracking but it is a great camera with fantastic lenses. I will eventually update when Fuji brings out a newer sensor but am thrilled with the quality of the IQ. Had some photos in an exhibit recently and looking at the ones done with full frame they have no better IQ at the sizes we printed at (13x19).